what can I do with LDAP?
what is the difference between LDAP and Oracle Internet Directory?
Well, there is quite a lot of interresting documents, pictures and faq on otn :
When you download application server (about 2Gb), you get a fully functionnal 10.1.0.4.2 database preconfigured and an ldap server running.
To start the admin tool, just type oidadmin in the command line.
The password to use is the same as ias_admin and the username is orcladmin